Direct-current brushless motor with fixed sealing cover

Abstract

The utility model relates to the field of motor devices, and discloses a direct current brushless motor with a fixed sealing cover, which comprises a front end cover, a shell and a rear end cover, the front end cover is arranged at the front end of the shell, the rear end cover is arranged at the rear end of the shell, the front end of the shell is fixedly connected with the rear end of the front end cover, and the middle part of the front end of the front end cover is rotatably connected with a rotating shaft. Three vent holes are formed in the front end of the front end cover in a circumferential array mode, the inner side walls of the three vent holes are fixedly connected with dust screens respectively, the rear end of the shell is fixedly connected with the front end of the rear end cover, three heat dissipation holes are formed in the rear end of the rear end cover in a circumferential array mode, and the inner side walls of the three heat dissipation holes are fixedly connected with heat dissipation blocks respectively. According to the direct-current brushless motor with the fixed sealing cover provided by the utility model, the heat dissipation block is arranged at the rear end, so that the service life of the motor is effectively prolonged, and meanwhile, the installation block is utilized, so that the convenience of overall installation of the motor is effectively improved.

Description

Technical Field

[0001] The utility model relates to the field of motor devices, in particular to a brushless DC motor with a fixed cover. Background Art

[0002] The brushless DC motor is composed of a motor body and a driver. It is a typical mechatronics product. Since the brushless DC motor is operated in an automatic manner, it does not require an additional starting winding on the rotor like a synchronous motor that starts under heavy load under variable frequency speed regulation. It also does not produce oscillation and loss of step when the load changes suddenly. The permanent magnets of small and medium-capacity brushless DC motors now mostly use rare earth neodymium iron boron materials with high magnetic energy levels. Therefore, the volume of the rare earth permanent magnet brushless motor is one frame size smaller than that of the three-phase asynchronous motor of the same capacity. In order to improve the practicality of the brushless motor, it is necessary to propose a DC brushless motor with a fixed cover.

[0003] Although the prior art uses motors to drive the operation of mechanical parts, the device as a whole cannot be well fixed during the use of the motor, which makes the motor prone to damage during use. Therefore, technical personnel in this field provide a DC brushless motor with a fixed cover to solve the problems raised in the above background technology. Utility Model Content

[0004] The utility model aims to solve the shortcomings of the prior art and proposes a DC brushless motor with a fixed cover, which provides a DC brushless motor with a fixed cover that effectively improves the service life of the motor by arranging a heat dissipation block on the rear end and effectively improves the convenience of the overall installation of the motor by utilizing the mounting block.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a brushless DC motor with a fixed cover, comprising a front end cover, a shell and a rear end cover, wherein the front end cover is arranged at the front end of the shell, the rear end cover is arranged at the rear end of the shell, a handle is fixedly connected to the side wall of the shell, the front end of the shell is fixedly connected to the rear end of the front end cover, a rotating shaft is rotatably connected to the middle of the front end of the front end cover, the front end of the front end cover has three air holes in a circumferential array, the inner side walls of the three air holes are respectively fixedly connected to dustproof nets, and the rear end of the shell is fixedly connected to the front end of the rear end cover;

[0006] Through the above technical solution, a front end cover is provided, three air holes are provided at the front end of the front end cover, and dustproof nets are provided on the inner walls of the air holes respectively. The dustproof nets are used to effectively prevent dust from entering the inside of the shell, thereby increasing the service life of the motor. At the same time, a handle is provided on the side wall of the shell, and the handle allows the user to transfer or transport the entire motor, thereby effectively improving the practicality of the device.

[0007] Further, the rear end of the rear end cover has three heat dissipation holes in a circular array, the inner side walls of the three heat dissipation holes are respectively fixedly connected with heat dissipation blocks, the rear ends of the inner side walls of the three heat dissipation blocks are respectively linearly arrayed with a plurality of heat dissipation fins, the middle part of the rear end of the rear end cover is fixedly connected with a positioning block, the side wall of the positioning block is fixedly connected with a mounting block, the rear end of the mounting block has four mounting holes in a rectangular array, the middle part of the rear end of the mounting block has four fixing holes in a rectangular array, and the inner side walls of the four fixing holes are respectively rotatably connected with fixing bolts;

[0008] Through the above technical solution, three heat dissipation holes are set in the rear end cover, and a heat dissipation block is set in the heat dissipation holes. The heat dissipation fins on the heat dissipation block can increase the contact area between the heat dissipation block and the air, effectively realize the rapid heat exchange between the heat dissipation block and the air, and effectively improve the overall heat dissipation effect of the device.

[0009] Furthermore, the four fixing bolts respectively penetrate the inner wall of the fixing hole and are threadedly connected to the rear end of the rear end cover;

[0010] Through the above technical solution, the mounting block and the rear end cover are effectively mounted.

[0011] Furthermore, the inner side walls of the four mounting holes are respectively provided with threads;

[0012] The above technical solution makes it easy to install the entire device.

[0013] Furthermore, the output end inside the housing passes through the front end cover and is fixedly connected to the rear end of the rotating shaft;

[0014] Through the above technical solution, the rotating shaft is effectively driven to rotate.

[0015] Furthermore, the three heat dissipation blocks are respectively adapted to the three heat dissipation holes;

[0016] The above technical solution makes it easy to install the heat dissipation holes.

[0017] Furthermore, the three air holes are respectively matched with the three dustproof nets;

[0018] The above technical solution makes it easy to install the dustproof net.

[0019] Furthermore, the mounting block and the positioning block are coaxially arranged;

[0020] The above technical solution makes it easy to install and fix the mounting block.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, a front end cover is provided, three air holes are provided at the front end of the front end cover, and dustproof nets are provided on the inner walls of the air holes. The dustproof nets are used to effectively prevent dust from entering the interior of the housing, thereby increasing the service life of the motor. At the same time, a handle is provided on the side wall of the housing, and the handle allows the user to transfer or transport the entire motor, thereby effectively improving the practicality of the device.

[0023] 2. In the utility model, three heat dissipation holes are arranged in the rear end cover, and a heat dissipation block is arranged in the heat dissipation hole. The heat dissipation fins on the heat dissipation block can increase the contact area between the heat dissipation block and the air, effectively realize the rapid heat exchange between the heat dissipation block and the air, and effectively improve the overall heat dissipation effect of the device.

[0024] 3. In the utility model, a mounting block is provided at the rear end of the rear end cover, and the motor as a whole can be quickly installed by utilizing the mounting holes on the surface of the mounting block, thereby effectively improving the stability of the device as a whole during use, thereby improving the safety of the device as a whole and avoiding damage to the motor during long-term use. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A three-dimensional diagram of a brushless DC motor with a fixed cover proposed by the utility model;

[0026] Figure 2 A three-dimensional view from another perspective of a brushless DC motor with a fixed cover proposed by the utility model;

[0027] Figure 3 This is a rear view of a brushless DC motor with a fixed cover proposed by the utility model;

[0028] Figure 4 The utility model is a side view of a brushless DC motor with a fixed cover.

[0029] Legend:

[0030] 1. Front cover; 101. Dust screen; 102. Air vent; 2. Rear cover; 201. Heat dissipation hole; 202. Heat dissipation block; 203. Heat dissipation fin; 204. Positioning block; 3. Mounting block; 301. Mounting hole; 302. Fixing bolt; 303. Fixing hole; 4. Rotating shaft; 5. Shell; 6. Handle. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] Reference Figure 1-4 The utility model provides an embodiment: a DC brushless motor with a fixed cover, comprising a front end cover 1, a shell 5 and a rear end cover 2, the front end cover 1 is arranged at the front end of the shell 5, the rear end cover 2 is arranged at the rear end of the shell 5, a handle 6 is fixedly connected to the side wall of the shell 5, the front end of the shell 5 is fixedly connected to the rear end of the front end cover 1, the middle part of the front end of the front end cover 1 is rotatably connected to the rotating shaft 4, the front end of the front end cover 1 has three air holes 102 in a circumferential array, the inner walls of the three air holes 102 are respectively fixedly connected with dustproof nets 101, the rear end of the shell 5 is fixedly connected to the front end of the rear end cover 2, by setting the front end cover 1, three air holes 102 are arranged at the front end of the front end cover 1, and dustproof nets 101 are respectively arranged on the inner walls of the air holes 102, the dustproof net 101 is used to effectively prevent dust from entering the shell 5, so that the service life of the motor is improved, and at the same time, a handle 6 is arranged on the side wall of the shell 5, so that the user can transfer or transport the motor as a whole through the handle 6, which effectively improves the practicality of the device.

[0033] The rear end of the rear end cover 2 has three heat dissipation holes 201 in a circular array, and the inner walls of the three heat dissipation holes 201 are respectively fixedly connected with heat dissipation blocks 202, and the rear ends of the inner walls of the three heat dissipation blocks 202 are respectively linearly arrayed with a plurality of heat dissipation fins 203, a positioning block 204 is fixedly connected to the middle of the rear end of the rear end cover 2, and a mounting block 3 is fixedly connected to the side wall of the positioning block 204, and the rear end of the mounting block 3 has four mounting holes 301 in a rectangular array, and the middle of the rear end of the mounting block 3 has four fixing holes 303 in a rectangular array, and the inner walls of the four fixing holes 303 are rotatably connected with fixing bolts 302, respectively, three heat dissipation holes 201 are arranged in the rear end cover 2, and a heat dissipation block 202 is arranged in the heat dissipation holes 201, and the heat dissipation fins 203 on the heat dissipation block 202 can increase the contact area between the heat dissipation block 202 and the air, effectively realize the rapid heat exchange between the heat dissipation block 202 and the air, and effectively improve the overall heat dissipation effect of the device.

[0034] The four fixing bolts 302 respectively penetrate the inner wall of the fixing hole 303 and are threadedly connected to the rear end of the rear cover 2. The inner walls of the four mounting holes 301 are respectively provided with threads. The internal output end of the shell 5 penetrates the front cover 1 and is fixedly connected to the rear end of the rotating shaft 4. The three heat dissipation blocks 202 are respectively adapted to the three heat dissipation holes 201. The three air holes 102 are respectively adapted to the three dustproof nets 101. The mounting block 3 and the positioning block 204 are coaxially arranged. The mounting block 3 is arranged at the rear end of the rear cover 2. The mounting hole 301 on the surface of the mounting block 3 can be used to quickly install the entire motor, which effectively improves the stability of the entire device during use, improves the safety of the entire device, and avoids damage to the motor during long-term use.

[0035] Working principle: by setting a front end cover 1, three air holes 102 are set at the front end of the front end cover 1, and dustproof nets 101 are respectively set on the inner walls of the air holes 102, and the dustproof net 101 is used to effectively prevent dust from entering the shell 5, so that the service life of the motor is improved. At the same time, a handle 6 is set on the side wall of the shell 5, and the handle 6 allows the user to transfer or transport the motor as a whole, which effectively improves the practicality of the device. Three heat dissipation holes 201 are set in the rear end cover 2, and a heat dissipation block 202 is set in the heat dissipation hole 201. The heat dissipation fins 203 on the heat dissipation block 202 can increase the contact area between the heat dissipation block 202 and the air, effectively realize the rapid heat exchange between the heat dissipation block 202 and the air, and effectively improve the overall heat dissipation effect of the device. A mounting block 3 is set at the rear end of the rear end cover 2, and the mounting holes 301 on the surface of the mounting block 3 can be used to quickly install the motor as a whole, which effectively improves the stability of the device as a whole during use, improves the safety of the overall device, and avoids damage to the motor during long-term use.

[0036] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A brushless DC motor with a fixed cover, comprising a front cover (1), a housing (5) and a rear cover (2), wherein the front cover (1) is arranged at the front end of the housing (5), and the rear cover (2) is arranged at the rear end of the housing (5), characterized in that: A handle (6) is fixedly connected to the side wall of the shell (5); the front end of the shell (5) is fixedly connected to the rear end of the front cover (1); a rotating shaft (4) is rotatably connected to the middle of the front end of the front cover (1); the front end of the front cover (1) has three air holes (102) in a circular array; the inner walls of the three air holes (102) are respectively fixedly connected to dustproof nets (101); and the rear end of the shell (5) is fixedly connected to the front end of the rear cover (2).

2. A brushless DC motor with a fixed cover according to claim 1, characterized in that: The rear end of the rear cover (2) has three heat dissipation holes (201) in a circular array, the inner side walls of the three heat dissipation holes (201) are respectively fixedly connected to heat dissipation blocks (202), the inner side walls of the three heat dissipation blocks (202) have a plurality of heat dissipation fins (203) in a linear array at the rear end, a positioning block (204) is fixedly connected to the middle of the rear end of the rear cover (2), the side wall of the positioning block (204) is fixedly connected to the mounting block (3), the rear end of the mounting block (3) has four mounting holes (301) in a rectangular array, the rear end of the mounting block (3) has four fixing holes (303) in a rectangular array, and the inner side walls of the four fixing holes (303) are respectively rotatably connected to fixing bolts (302).

3. A brushless DC motor with a fixed cover according to claim 2, characterized in that: The four fixing bolts (302) respectively penetrate the inner wall of the fixing hole (303) and are threadedly connected to the rear end of the rear end cover (2).

4. A brushless DC motor with a fixed cover according to claim 2, characterized in that: The inner side walls of the four mounting holes (301) are respectively provided with threads.

5. A brushless DC motor with a fixed cover according to claim 1, characterized in that: The internal output end of the housing (5) passes through the front end cover (1) and is fixedly connected to the rear end of the rotating shaft (4).

6. A brushless DC motor with a fixed cover according to claim 2, characterized in that: The three heat dissipation blocks (202) are respectively adapted to the three heat dissipation holes (201).

7. A brushless DC motor with a fixed cover according to claim 1, characterized in that: The three air holes (102) are respectively matched with the three dustproof nets (101).

8. A brushless DC motor with a fixed cover according to claim 2, characterized in that: The mounting block (3) and the positioning block (204) are coaxially arranged.

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